Snow Trail

This page is for marketers setting up a Snow Trail campaign. Players ride one or more tracks back to back. The track scrolls at a steady speed, and players steer up and down with the on-screen arrows, the arrow keys, or by holding above or below the rider. Blocks of ice and cracks in the ice end the run on contact. Ice patches push the rider up or down. Power-ups are worth points and let the rider pass through anything for a few seconds. Between tracks, a card shows where the rider is and what comes next. The score shown at the end is the official one.

What you can set

Set these on the campaign’s Config tab.

Scoring

Setting	What it does	Allowed values
Points per power-up	What each power-up is worth.	1 to 1,000. Default 10.
Power-up protection	How long, in seconds, a power-up lets the rider pass through hazards.	1 to 15. Default 5.

Tracks

A campaign has 1 to 10 tracks, ridden in order in a single play. A crash ends the run.

Setting	What it does	Allowed values
Track name	The track’s name.	1 to 80 characters
Card message	Shown on the card before this track starts.	Up to 240 characters
Duration	How long the track lasts, in seconds.	15 to 180. New tracks start at 45.
Speed	How fast the track scrolls, in screens per second. 0.4 is gentle, 0.9 is fast.	0.2 to 1.5. Default 0.4.
Power-ups	How many power-ups appear. These set the best possible score.	1 to 60
Obstacles	How many blocks of ice appear.	0 to 180
Ice cracks	How many cracks appear. A crack ends the run unless the rider is powered up.	0 to 30. Default 1.
Ice patches	How many slippery patches appear. They push the rider but do not end the run.	0 to 30. Default 2.
Map image	An image shown on the track’s card.	Optional

Obstacles and ice cracks together can be at most the track’s duration in seconds minus 4. A 45-second track fits 41. The editor tells you if a track is too crowded.

Artwork and sound

Set artwork under Artwork on the Config tab. One set of artwork is used on every track, and every slot is optional.

Slot	Type	What it is	When left empty
Sky	Image	Far scenery, repeated across the screen and scrolled slowly.	A cold sky with a line of distant peaks.
Snow	Image	The snowfield the rider crosses, repeated and scrolled at track speed.	Plain snow.
Foreground	Image	Near drifts drawn over everything along the bottom of the screen.	Plain white drifts.
Rider	Sprite sheet	The rider, as a looping animation.	A simple snow bike with a rider.
Obstacles	Up to 4 sprite sheets	Looks for the blocks of ice, used at random along each track.	Plain blocks of ice.
Ice crack	Sprite sheet	The cracks that end a run.	A plain drawn crack.
Ice patch	Sprite sheet	The slippery patches.	A plain drawn patch.
Power-up	Sprite sheet	The power-ups.	A four-point star.

Snow Trail can also play sounds: music (loops under the run), pickup, crash, trackComplete and gameOver. Choose them in the Sounds section of the campaign’s Config tab, where each one has a play button so you can hear it first. With the API, set them in config.art.sounds with PATCH /v1/game-instances/{id}. With no sounds set, the game is silent.

For how to prepare images, sprite sheets and audio, see Artwork, sprite sheets and sound.

Text labels

Change these on the Copy & Translations tab.

Key	Default text	Where it shows
loading	Loading…	While the game loads.
tap_to_start	Tap anywhere to start	Before the first track.
start_track	Start	The button on each track card.
steer_hint	Steer with the arrows or the up and down keys	Under the button on the first track card.
score	Score	Next to the running total while riding.
sound_on	Sound on	The mute button while sound is playing.
sound_off	Sound off	The mute button once the player has turned sound off.
track_complete	Track complete!	When a track ends and another is coming.
crashed	You crashed!	When the rider hits an obstacle or falls through the ice.
journey_complete	Journey complete!	When the last track ends.
scoring	Scoring…	After the run, while the final score comes back.
result_some	Nice riding.	The result line when the run scored.
result_none	No power-ups this time.	The result line when the run scored nothing.

Choosing winners

Use Highest score, the default for this game. Players who finish every track and collect every power-up share the top score, so pick a tie-break: Earliest entry wins or Random among tied entries.